Banking
Info Stealing
Windows
Fileless
APT
Emotet is a sophisticated, self-propagating Trojan that infiltrates systems primarily through phishing emails containing malicious attachments or links. Once activated, it spreads within networks by brute-forcing user credentials and exploiting shared drives, making it challenging to eradicate due to its worm-like capabilities. Emotet's modular design allows it to download additional payloads, enhancing its functionality and adaptability.
Emotet has evolved from a simple banking Trojan into a versatile platform for cybercriminal activities. Its polymorphic nature enables it to change its code frequently, evading signature-based detection by security software. Additionally, Emotet can detect virtual machine environments and sandboxing, remaining dormant to avoid analysis.
Distribution Methods
Emotet primarily spreads through large-scale spam campaigns, delivering malicious documents via email. These emails often appear as legitimate communications, enticing users to open attachments or click on links that execute the malware. Once a system is compromised, Emotet can download and execute additional malware, such as ransomware or other banking Trojans.
Persistence and Evasion
To maintain persistence, Emotet employs various techniques, including creating autorun registry keys and services. Its use of modular Dynamic Link Libraries (DLLs) allows it to update and add new features seamlessly, adapting to security measures and enhancing its evasion capabilities.
Implement email filtering to block malicious attachments and links.
Disable macros in Office documents to prevent automatic execution of malware.
Apply patches for known vulnerabilities promptly to reduce exploitation risks.
Educate users about phishing attacks to enhance awareness and caution.
